All these years you thought the terrorist attacks on September 11, 2001 were the work of terrorists. Well, you're about to learn the scarifying truth: The Simpsons did it.

At least, according to some nutjob conspiracy theorists (pretty sure that "nutjob" is a tautology), who reckon that the long-running cartoons writers predicted the terrorist attack and inserted secret messages into the show. Check out the video for the stunning proof!

In the 1997 ep where Our Favourite Family heads to New York City, Lisa holds up a magazine cover advertising $9 bus fares to the Big Apple. The "9" is placed in front of a silhouette of the Twin Towers — so that it looks like it's saying 9/11. Dun dun dun!

And apparently there's secret messages hidden in recent episodes, too: in the 2010 episode 'To Surveil With Love', an exploded clock proves that Freemasons/the Illuminati had another attack planned for November 6, 2010. Or something.

"I know it seems a stretch to base this all on an episode of The Simpsons," the video concludes. No kidding.